Sharp 14VT10X1, Руководство по обслуживанию

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3. Set service switch at the Video Cut position
to cut off the signal.
4. Adjust the colour control key so that the output
waveform of colour difference signal becomes
1.5 vp-p.
5. Adjust R806 and T801 so that the output
waveform shown in Fig. a is corrected to that
shown in Fig. b.
6. Return to CENTER (normal position).
Figure a. Waveform before the adjustment
Figure b. Waveform after the adjustment
Sub tint: R882
1. Feed “NTSC COLOUR BAR” signal to video in jack
with colour bar generator at the AV mode.
2. to TP853 (B-Y).
3. Set the TINT VR at the center
position.
4. Set service switch
at
the Video Cut position
to cut off the signal.
5. Adjust colour control key to obtain the output of
about 3 Vp-p.
6. Adjust sub tint control (R882) so that the output
waveform is as shown in figure below.
7. Return to CENTER (normal position).
,
,
,
Same level-,
.
8 - Y
PAL adjustment: R802
1. Receive “PAL COLOUR BAR” signal with colour
bar
generator.
2. Set the control at the “Normal” position that
contrast is Max. colour is center
and brightness is center using control, A
and keys.
3. Connect oscilloscope to the TP852 (Red cathode).
l Range:
l Sweep time:
4. For PAL colour bar signal reception, adjust R802
so that the white output (75%) and red output
will have the same level.
Same level for the and ted outputs